#679FBC
Closest named color: Greyblue (#77A1B5). oklch(67.5% 0.073 231.9), rgb(103, 159, 188).
Aa
Black text reads best on this color (7.26:1).
About this color
#679FBC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.073 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.022 away. Black text reads best on it, at 7.26:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.26:1 |
| White text | 2.89:1 |
Values
| HEX | #679FBC |
| RGB | rgb(103, 159, 188) |
| HSL | hsl(200, 39%, 57%) |
| OKLCH | oklch(67.5% 0.073 231.9) |
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 #679FBC | 2.89:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #679FBC | 7.26:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #679FBC text on white | 2.89:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #679FBC text on black | 7.26:1 | AAA | Lc -46.7 | Large or bold text, headings |
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 400.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A4C6D9
oklch(80.8% 0.045 232.5)
-
Step 400
400 (this color)
#679FBC
oklch(67.5% 0.073 231.9)
-
Step 500
500
#4793B8
oklch(63% 0.093 232)
-
Step 600
600
#237DA4
oklch(55.6% 0.101 231.9)
-
Step 700
700
#13698D
oklch(49.1% 0.095 232.5)
-
Step 800
800
#155672
oklch(42.7% 0.078 231.8)
-
Step 900
900
#1A475C
oklch(37.7% 0.06 231.8)
-
Step 950
950
#112A36
oklch(27.1% 0.038 231.3)
#679FBC 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) | #919DBD | 0.050 |
| Deuteranopia (no green cones) | #8594BC | 0.044 |
| Tritanopia (no blue cones) | #42A7A8 | 0.054 |
| Achromatopsia (no color) | #989898 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #679FBC
#679FBC
oklch(67.5% 0.073 231.9)
- #BB8A6D
#BB8A6D
oklch(67.4% 0.073 51.7)
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 #679FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.022
- Bluegrey #85A3B2 ΔE 0.040
- Bluey Grey #89A0B0 ΔE 0.043
- Cadet Blue #5F9EA0 ΔE 0.044
- Cool Gray #8D99AE ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.053
- Faded Blue #658CBB ΔE 0.054
Use #679FBC 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.