#6E99BF
Closest named color: Greyblue (#77A1B5). oklch(66.6% 0.074 245.9), rgb(110, 153, 191).
Aa
Black text reads best on this color (6.97:1).
About this color
#6E99BF is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.074 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.033 away. Black text reads best on it, at 6.97:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 6.97:1 |
| White text | 3.01:1 |
Values
| HEX | #6E99BF |
| RGB | rgb(110, 153, 191) |
| HSL | hsl(208, 39%, 59%) |
| OKLCH | oklch(66.6% 0.074 245.9) |
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 #6E99BF | 3.01:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #6E99BF | 6.97:1 | AA | Lc 47.3 | Large or bold text, headings |
| #6E99BF text on white | 3.01:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #6E99BF text on black | 6.97:1 | AA | Lc -45.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDBE6
oklch(88.6% 0.02 245.7)
-
Step 300
300
#AEC4D7
oklch(81% 0.036 244.3)
-
Step 400
400
#83A5C3
oklch(70.7% 0.058 245.4)
-
Step 500
500 (this color)
#6E99BF
oklch(66.6% 0.074 245.9)
-
Step 600
600
#4A78A0
oklch(55.7% 0.08 246.1)
-
Step 700
700
#3B6589
oklch(49.2% 0.075 245.9)
-
Step 800
800
#31526F
oklch(42.6% 0.062 246.4)
-
Step 900
900
#2C445A
oklch(37.7% 0.048 247.1)
-
Step 950
950
#1A2835
oklch(27% 0.031 247.2)
#6E99BF 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) | #8A99C1 | 0.035 |
| Deuteranopia (no green cones) | #7F91BE | 0.028 |
| Tritanopia (no blue cones) | #4FA2A6 | 0.061 |
| Achromatopsia (no color) | #959595 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6E99BF
#6E99BF
oklch(66.6% 0.074 245.9)
- #B48B63
#B48B63
oklch(66.6% 0.074 65.3)
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 #6E99BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.033
- Faded Blue #658CBB ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.040
- Cool Gray #8D99AE ΔE 0.044
- Blue Grey #758DA3 ΔE 0.046
- Bluey Grey #89A0B0 ΔE 0.048
- Bluegrey #85A3B2 ΔE 0.049
- Cadet Blue #5F9EA0 ΔE 0.057
Use #6E99BF 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.