#006191
Closest named color: Peacock Blue (#016795). oklch(47% 0.108 240.3), rgb(0, 97, 145).
Aa
White text reads best on this color (6.73:1).
About this color
#006191 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.108 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.018 away. White text reads best on it, at 6.73:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #006191 |
| RGB | rgb(0, 97, 145) |
| HSL | hsl(200, 100%, 28%) |
| OKLCH | oklch(47% 0.108 240.3) |
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 #006191 | 6.73:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #006191 | 3.11:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #006191 text on white | 6.73:1 | AA | Lc 82.6 | Fine for body text |
| #006191 text on black | 3.11:1 | AA large text | Lc -19.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF3
oklch(93.5% 0.015 241.8)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A3C6E0
oklch(81% 0.053 240.5)
-
Step 400
400
#6FA8D0
oklch(70.8% 0.084 240.1)
-
Step 500
500
#4591C4
oklch(63% 0.108 240.8)
-
Step 600
600
#1F7BB0
oklch(55.7% 0.116 240)
-
Step 700
700 (this color)
#006191
oklch(47% 0.108 240.3)
-
Step 800
800
#12547B
oklch(42.6% 0.09 240.7)
-
Step 900
900
#184663
oklch(37.7% 0.07 240.2)
-
Step 950
950
#10293A
oklch(27% 0.044 240.8)
#006191 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) | #4A6293 | 0.054 |
| Deuteranopia (no green cones) | #375690 | 0.042 |
| Tritanopia (no blue cones) | #006D72 | 0.071 |
| Achromatopsia (no color) | #5C5C5C | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #006191
#006191
oklch(47% 0.108 240.3)
- #864A04
#864A04
oklch(47.2% 0.108 60.4)
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 #006191, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.029
- Denim #3B638C ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.038
- Dusk Blue #26538D ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.043
- Ocean Blue #03719C ΔE 0.049
- Dusky Blue #475F94 ΔE 0.050
Use #006191 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.