#6191BF
Closest named color: Faded Blue (#658CBB). oklch(64.1% 0.087 248.3), rgb(97, 145, 191).
Aa
Black text reads best on this color (6.31:1).
About this color
#6191BF is a medium-light, moderately saturated blue. In OKLCH its lightness is 64%, its chroma 0.087 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.014 away. Black text reads best on it, at 6.31:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.31:1 |
| White text | 3.32:1 |
Values
| HEX | #6191BF |
| RGB | rgb(97, 145, 191) |
| HSL | hsl(209, 42%, 56%) |
| OKLCH | oklch(64.1% 0.087 248.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #6191BF | 3.32:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #6191BF | 6.31:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #6191BF text on white | 3.32:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #6191BF text on black | 6.31:1 | AA | Lc -41.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ACC4DB
oklch(81% 0.042 247.2)
-
Step 400
400
#7FA5C9
oklch(70.7% 0.067 247.4)
-
Step 500
500 (this color)
#6191BF
oklch(64.1% 0.087 248.3)
-
Step 600
600
#4377A8
oklch(55.5% 0.095 248.6)
-
Step 700
700
#356490
oklch(49% 0.088 248.6)
-
Step 800
800
#2C5275
oklch(42.7% 0.073 248.1)
-
Step 900
900
#28445E
oklch(37.7% 0.056 247.8)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#6191BF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7E92C1 | 0.035 |
| Deuteranopia (no green cones) | #7289BE | 0.028 |
| Tritanopia (no blue cones) | #359CA1 | 0.074 |
| Achromatopsia (no color) | #8D8D8D | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6191BF
#6191BF
oklch(64.1% 0.087 248.3)
- #AF8250
#AF8250
oklch(64% 0.087 68.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #6191BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.014
- Silver Lake Blue #778DA9 ΔE 0.038
- Dusty Blue #5A86AD ΔE 0.039
- Off Blue #5684AE ΔE 0.044
- Blue Grey #758DA3 ΔE 0.045
- Cool Blue #4984B8 ΔE 0.047
- Steel Blue #4682B4 ΔE 0.055
- Light Slate Gray #778899 ΔE 0.059
Use #6191BF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.