#306AAE
Closest named color: Mid Blue (#276AB3). oklch(52% 0.124 254.2), rgb(48, 106, 174).
Aa
White text reads best on this color (5.52:1).
About this color
#306AAE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.124 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.010 away. White text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.79:1 |
| White text | 5.52:1 |
Values
| HEX | #306AAE |
| RGB | rgb(48, 106, 174) |
| HSL | hsl(212, 57%, 44%) |
| OKLCH | oklch(52% 0.124 254.2) |
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 #306AAE | 5.52:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #306AAE | 3.79:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #306AAE text on white | 5.52:1 | AA | Lc 77.3 | Fine for body text |
| #306AAE text on black | 3.79:1 | AA large text | Lc -24.5 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBEF
oklch(88.6% 0.033 254)
-
Step 300
300
#A7C3E7
oklch(80.9% 0.06 254.8)
-
Step 400
400
#77A4DB
oklch(70.8% 0.095 253.9)
-
Step 500
500
#528CD2
oklch(63.2% 0.123 254.2)
-
Step 600
600
#3574BF
oklch(55.5% 0.134 254.5)
-
Step 700
700 (this color)
#306AAE
oklch(52% 0.124 254.2)
-
Step 800
800
#225085
oklch(42.7% 0.102 253.9)
-
Step 900
900
#21436B
oklch(37.8% 0.08 253.9)
-
Step 950
950
#14273F
oklch(27% 0.052 255)
#306AAE 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) | #4B6FB1 | 0.032 |
| Deuteranopia (no green cones) | #3763AD | 0.019 |
| Tritanopia (no blue cones) | #007A83 | 0.096 |
| Achromatopsia (no color) | #696969 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306AAE
#306AAE
oklch(52% 0.124 254.2)
- #8E5E00
#8E5E00
oklch(52.1% 0.11 74.4)
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 #306AAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.010
- French Blue #436BAD ΔE 0.018
- Flat Blue #3C73A8 ΔE 0.033
- Muted Blue #3B719F ΔE 0.036
- Ocean Blue #03719C ΔE 0.044
- Nice Blue #107AB0 ΔE 0.045
- Windows Blue #3778BF ΔE 0.045
- Dusky Blue #475F94 ΔE 0.048
Use #306AAE 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.