#0678AB
Closest named color: Nice Blue (#107AB0). oklch(54.3% 0.118 237.3), rgb(6, 120, 171).
Aa
White text reads best on this color (4.90:1).
About this color
#0678AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.118 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.010 away. White text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #0678AB |
| RGB | rgb(6, 120, 171) |
| HSL | hsl(199, 93%, 35%) |
| OKLCH | oklch(54.3% 0.118 237.3) |
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 #0678AB | 4.90:1 | AA | Lc -78.8 | Fine for body text |
| Black text on #0678AB | 4.28:1 | AA large text | Lc 30.7 | Non-text elements, placeholder text |
| #0678AB text on white | 4.90:1 | AA | Lc 73.4 | Content text, not long reading |
| #0678AB text on black | 4.28:1 | AA large text | Lc -28.3 | 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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEB
oklch(88.6% 0.03 236.9)
-
Step 300
300
#A1C6DF
oklch(80.8% 0.053 237.9)
-
Step 400
400
#6CA9CF
oklch(70.8% 0.084 237)
-
Step 500
500
#3F92C3
oklch(63% 0.109 237.9)
-
Step 600
600 (this color)
#0678AB
oklch(54.3% 0.118 237.3)
-
Step 700
700
#006896
oklch(49.1% 0.108 237.6)
-
Step 800
800
#07557A
oklch(42.6% 0.091 237.3)
-
Step 900
900
#144762
oklch(37.8% 0.07 236.4)
-
Step 950
950
#0E293A
oklch(26.9% 0.046 239.3)
#0678AB 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) | #5F78AD | 0.065 |
| Deuteranopia (no green cones) | #4B6BAA | 0.052 |
| Tritanopia (no blue cones) | #00858A | 0.074 |
| Achromatopsia (no color) | #717171 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0678AB
#0678AB
oklch(54.3% 0.118 237.3)
- #A15B1C
#A15B1C
oklch(54.2% 0.117 57.4)
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 #0678AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.010
- Flat Blue #3C73A8 ΔE 0.028
- Ocean Blue #03719C ΔE 0.029
- Muted Blue #3B719F ΔE 0.032
- Sea Blue #047495 ΔE 0.035
- Windows Blue #3778BF ΔE 0.041
- Dull Blue #49759C ΔE 0.042
- Cerulean #457B9D ΔE 0.043
Use #0678AB 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.